1.magnetic separation: Used to clear the iron impurity which might be in the rice brain.

2.Screen: used to remove the chaff and second head in the rice bran, in case of they will influence the oil yield and the desolventof wet meal in the next process.

3.quenching and tempering

Quenching and tempering is the process of preheating so that to improve the temperature of the rice brain before puffing.

4.puffing

Puffing the rice bran is injecting high pressure steam and high temperature water through the extrusion machine, so that it can improve the temperature and moisture in the extrusion machine, and can also form the high pressure to process the rice bran.

5.Drying and cooling

The moisture of puffed material comes from the extrusion machine is too big and the temperature is too high for direct leaching, the must be experience to process of drying and cooling.

Ⅱ.the introduction of rice bran solvent extraction plant

After pretreatment puffing plant, the rice bran will become meal. Since the rice bran belongs to the low oil content, so use the method of solvent extraction can ensure the max oil yield.

The brief fundamental of the solvent extraction plant:

First, send the rice bran meal to the roary extractor, the meal will be fully soaked in the extractor by the solvent. Thus, the oil in the rice bran will be absorbed in to the solvent.

Second, Separate the solvent from the soaked meal and from the miscella(solvent and rice bran oil) .Thus, the separated solvent can be used for recycling, the dried meal can be made for animal feed, and the oil will be sent to refining plant for high quality oil.

Ⅲ. The introduction ofthe oil refining plant

Oil refining is according to the different usage and requirements, utilizing the physical methods and chemical processes to get rid of the harmful impurities and needless substance in the crude oil, getting standard oil.

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